[Clang][LoongArch] Implement __builtin_loongarch_crc_w_d_w builtin and add diagnostics

This patch adds support to prevent __builtin_loongarch_crc_w_d_w from compiling
on loongarch32 in the front end and adds diagnostics accordingly.

Reference: https://github.com/gcc-mirror/gcc/blob/master/gcc/config/loongarch/larchintrin.h#L175-L184

Depends on D136906

Differential Revision: https://reviews.llvm.org/D137316